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WO2018231047A1 - Système et procédé de dosage du mercure dans un flux d'hydrocarbures - Google Patents

Système et procédé de dosage du mercure dans un flux d'hydrocarbures Download PDF

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Publication number
WO2018231047A1
WO2018231047A1 PCT/MY2018/050041 MY2018050041W WO2018231047A1 WO 2018231047 A1 WO2018231047 A1 WO 2018231047A1 MY 2018050041 W MY2018050041 W MY 2018050041W WO 2018231047 A1 WO2018231047 A1 WO 2018231047A1
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WO
WIPO (PCT)
Prior art keywords
catalyst
mercury
receptacle
hydrocarbon stream
microwaves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/MY2018/050041
Other languages
English (en)
Inventor
Tengku M Uzaini TENGKU MAT
Ahmad Syukri Na’im M HANAFIAH
Nor Hafizah YASIN
Sharizal MOHD AZAM SHAH WONG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petroliam Nasional Bhd Petronas
Original Assignee
Petroliam Nasional Bhd Petronas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Petroliam Nasional Bhd Petronas filed Critical Petroliam Nasional Bhd Petronas
Publication of WO2018231047A1 publication Critical patent/WO2018231047A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/44—Sample treatment involving radiation, e.g. heat
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B43/00—Obtaining mercury
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/4022—Concentrating samples by thermal techniques; Phase changes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/405—Concentrating samples by adsorption or absorption
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2835—Specific substances contained in the oils or fuels

Definitions

  • the invention relates to systems and methods for measuring mercury in a hydrocarbon stream.
  • Mercury is a naturally occurring impurity found in hydrocarbons. Mercury causes detrimental effects to process equipment and poses a health hazard to personnel. Measurement of mercury in hydrocarbons is therefore an important aspect of mitigating the challenges associated with mercury. However, measuring mercury in liquid hydrocarbons is challenging due to the complex matrix of hydrocarbons.
  • the three main groups of mercury are elemental mercury (Hg ° ), organic mercury and inorganic mercury.
  • Mercury is commonly detected via spectroscopy technology in elemental form ; therefore the conversion of all mercury species to elemental mercury is necessary.
  • temperatures of 700°C - 800 °C and above all mercury species is converted to elemental mercury.
  • thermal conversion technique There are currently two extensively used techniques for converting all mercury species to elemental mercury: thermal conversion technique and wet chemistry technique.
  • thermal conversion technique and wet chemistry technique.
  • oxidized mercury is converted to elemental mercury using a liquid reducing agent (e.g. SnCI 2 ) prior to entering the detector unit.
  • a liquid reducing agent e.g. SnCI 2
  • the thermal conversion method requires that the sample is in gaseous form and channeled through an adsorbent where mercury species will be trapped/amalgamated at elevated temperatures.
  • This adsorbent (comprising noble metals such as gold or platinum) is then heated to high temperatures (700°C - 800 °C) where mercury species are released and converted to elemental mercury and swept by a carrier gas to the detector. Measurement of mercury is normally done at a set wavelength of 253.7 nm.
  • the thermal conversion technique is preferred to the wet chemistry method simply because it is does not involve any reagents, is more reliable, simple and suits the requirement for online analyzer applications.
  • Another setup involves the combustion of liquid hydrocarbon at high temperatures (700°C - 800°C) to gaseous form which also converts all mercury species to elemental mercury (Hg°) and oxidized form. This is followed by trapping of the gaseous hydrocarbon with a suitable material (i.e. hydrocarbon adsorbent and catalyst) to convert the combustion products and allow elemental mercury to pass through the hydrocarbon adsorbent to be trapped by a downstream mercury adsorbent. Next, the mercury is desorbed and channeled to a mercury detector for measurement.
  • This setup is simpler than the wet chemistry method and suitable for laboratory bench applications.
  • a system for measuring mercury in a hydrocarbon stream comprising: a wave generator configured to emit microwaves; a receptacle configured to hold a catalyst; a fluid transporter configured to allow the hydrocarbon stream to be in fluid communication with the receptacle that is holding the catalyst; and a waveguide disposed between the wave generator and the receptacle, the waveguide configured to channel the emitted microwaves to the catalyst such that the catalyst absorbs the microwaves to generate heat for converting mercury in the hydrocarbon stream into elemental mercury.
  • the catalyst can also facilitate vaporization and cracking of complex hydrocarbon chains in the hydrocarbon stream to simpler hydrocarbon chains.
  • An additional catalyst can be provided to trap or adsorb the simpler hydrocarbon chains and its pyrolized product from the hydrocarbon stream .
  • a method for measuring mercury in a hydrocarbon stream comprising: emitting microwaves from a wave generator; providing a receptacle that is configured to hold a catalyst; passing the hydrocarbon stream to the receptacle such that the hydrocarbon stream is in fluid communication with the receptacle that is holding the catalyst; and using a waveguide that is disposed between the wave generator and the receptacle to channel the emitted microwaves to the catalyst such that the catalyst absorbs the microwaves to generate heat for converting mercury in the hydrocarbon stream into elemental mercury.
  • the catalyst can also facilitate vaporization and cracking of complex hydrocarbon chains in the hydrocarbon stream to simpler hydrocarbon chains.
  • An additional catalyst can be provided to trap or adsorb the simpler hydrocarbon chains and its pyrolized product from the hydrocarbon stream.
  • Figure 1 is a schematic of a system for measuring mercury in a hydrocarbon stream, according to an embodiment of the invention.
  • Figures 2A to 2D illustrate an operation sequence of the system for measuring mercury in a hydrocarbon stream, according to an embodiment of the invention.
  • Figure 3 is a flow chart 300 illustrating a method for measuring mercury in a hydrocarbon stream, according to an embodiment of the invention.
  • Figures 4 to 10 illustrate the various sequences of a start-up cycle and sampling/analysis cycle, according to an embodiment of the invention.
  • Embodiments of the invention seek to provide systems and methods for measuring mercury in a hydrocarbon stream (i.e. sample) using microwave assisted thermal pyrolysis.
  • the hydrocarbon stream may comprise natural gas, condensate, crude oil and/or refined oil products.
  • Microwaves are directed towards one or more catalysts, and the one or more catalysts absorb the microwaves to generate heat for converting various species of mercury in the hydrocarbon stream into its elemental form without recombination back to its original species.
  • the elemental mercury can then be detected via spectroscopy technology.
  • the one or more catalysts can also vaporize and crack complex hydrocarbon chains in the hydrocarbon stream to simpler hydrocarbon chains.
  • the one or more catalysts can further trap or even eliminate pyrolysis hydrocarbon products, e.g. soot, particulate, carbon products that may affect the accuracy of the mercury detector.
  • FIG. 1 is a schematic of a system 100 for measuring mercury in a hydrocarbon stream, according to an embodiment of the invention.
  • the system 100 includes the following components: a wave generator 102 that is configured to emit microwaves, a receptacle 104 that is configured to hold a catalyst 105a, a fluid transporter 106 that is configured to allow the hydrocarbon stream to be in fluid communication with the receptacle 104 that is holding the catalyst 105a, and a waveguide 108 that is disposed between the wave generator 102 and the receptacle 104.
  • the waveguide 108 is configured to channel the emitted microwaves to the catalyst 105a such that the catalyst 105a absorbs the microwaves to generate heat (at least about 800°C) for converting mercury in the hydrocarbon stream into elemental mercury.
  • the catalyst converts the radiation energy of the microwaves into heat and transfers the heat to the sample (i.e. hydrocarbon stream with mercury) for pyrolysis.
  • the catalyst 105a can absorb the microwaves to generate heat to at least partially crack complex hydrocarbon molecules in the hydrocarbon stream into simpler hydrocarbon molecules.
  • the receptacle 104 can be configured to hold an additional catalyst 105b.
  • the additional catalyst 105b can adsorb the simpler hydrocarbon molecules.
  • the two catalysts i.e. the catalyst 105a and the additional catalyst 105b serve different functions while being contained in the single receptacle 104.
  • the wave generator 102 may include a magnetron that is capable of generating the microwaves with a power range between 800 to 1500 Watts.
  • the wave generator 102, receptacle 104 and waveguide 108 are preferably positioned and aligned in a specific fashion so as to optimize the absorption of the microwave energy by the catalyst 105a.
  • the wave generator 102, receptacle 104 and waveguide 108 may be disposed in an enclosure 107 at a pressure of about 1 atm.
  • the fluid transporter 106 may include an injector with associated ports and tubing that are inert to mercury and transparent to microwaves (does not absorb microwaves).
  • a carrier gas e.g. Nitrogen, > 95% purity
  • a pressure regulator may be used to regulate the pressure from a carrier gas source (e.g. gas cylinder) to an injector port, i.e. high to low pressure.
  • the catalyst 105a includes a mixture of relatively high dissipation factor materials (e.g. carbon-based materials) to accelerate the heating rate.
  • the catalyst 105a may include silicon carbide (SiC) and carbon (C), with a SiC:C ratio ranging from 1 :0 to 1 :1 .
  • the SiC may include a-SiC or ⁇ -SiC, or other structure as well as crystalline and amorphous forms.
  • the catalyst 105a absorbs microwaves to generate heat sufficient to convert all target analyte (i.e. mercury) species to elemental form as well as to crack portions of complex hydrocarbons molecules inside the sample matrix (condensate and crude oil range) into simpler hydrocarbons molecules.
  • the additional catalyst 105b includes a substance derived from a polymer- based material, e.g. 2, 6-diphenylene-oxide.
  • the additional catalyst 105b adsorbs the cracked hydrocarbons to prevent them from entering the downstream region. However, the additional catalyst 105b does not adsorb elemental mercury.
  • the receptacle 104 can include a separator 1 10 to physically separate the catalyst 105a and the additional catalyst 105b when they are being held in the receptacle 104.
  • the catalyst 105a and the additional catalyst 105b are separated to avoid decomposition of the polymer-based material of the additional catalyst 105b due to localized high temperatures at the catalyst 105a.
  • the receptacle 104 can be positioned within a housing (not shown) that includes walls, such that the housing surrounds / encloses at least a portion of the receptacle 104.
  • the walls of the housing are configured to reflect a portion of the emitted microwaves such that standing waves are formed in the receptacle 104 at a resonant frequency to facilitate the generation of heat by the catalyst 105a held in the receptacle 104.
  • the receptacle 104 is preferably constructed from a material with a high melting point (about 1700°C), low loss-tangent, transparency to microwave radiation (does not absorb microwaves) and inertness to mercury, e.g. quartz.
  • the system 100 may further include a mercury trap 1 12 disposed downstream relative to the receptacle 104.
  • the system 100 may further include a detector 1 14 in fluid communication with the mercury trap 1 12 for detecting mercury being desorbed therefrom.
  • the mercury trap 1 12 is able to capture mercury vapour via amalgamation while allowing other substances (e.g. carrier gas, hydrocarbon vapour) to pass through.
  • the mercury trap 1 12 can be heated to about 700°C to release the trapped mercury to the detector 1 14.
  • the detector 1 14 can measure mercury content down to trace levels, e.g. Spectroscopy and other detectors capable of detecting mercury.
  • the system 100 may further include at least two mercury traps disposed downstream relative to the receptacle 104. At a particular point in time, at least one trap operates in an adsorption mode for adsorbing the elemental mercury while at least one other trap operates in a desorption mode for releasing the elemental mercury.
  • the system 100 may further include a detector 1 14 in fluid communication with the trap that is operating in the desorption mode for detecting mercury being desorbed therefrom.
  • the at least two mercury traps are configured to alternate between the adsorption mode and the desorption mode to enable measurement of mercury in the hydrocarbon stream.
  • Figures 2A to 2D illustrate an operation sequence of the system 100 for measuring mercury in a hydrocarbon stream, according to an embodiment of the invention.
  • a sample is introduced into the system 100 at the fluid transporter 106.
  • the sample is transported directly by the fluid transporter 106 to the receptacle 104 that is holding the catalyst 105a.
  • the sample can be manually injected or automatically injected via a sample injection system.
  • a carrier gas is introduced into the system 100 at the fluid transporter 106.
  • the carrier gas continuously flows during the entire operation (i.e. the first phase and subsequent phases).
  • the wave generator 102 is inactive.
  • the wave generator 102 is activated at around 800 to 1500W.
  • the catalyst 105a is heated up and the heat is transferred to the deposited sample.
  • the sample is heated up to about 800°C and above and the sample matrix is vaporized.
  • mercury species in the sample matrix is converted to elemental mercury, and the complex hydrocarbon is hydrocracked into simpler hydrocarbons.
  • the vaporized sample matrix is carried through the additional catalyst 105b (i.e. hydrocarbon adsorbent). Hydrocarbon molecules are trapped by the hydrocarbon adsorbent while mercury vapour passes through. Still referring to Figure 2C, during the fourth phase (trapping and desorption), the mercury vapour is trapped by the mercury trap 1 12. Trapping time is about 3 to 5 minutes to ensure entrapment of all mercury vapour. Thereafter, the mercury trap 1 12 can be heated to about 700°C to release the trapped mercury to the detector 1 14.
  • the additional catalyst 105b i.e. hydrocarbon adsorbent
  • Hydrocarbon molecules are trapped by the hydrocarbon adsorbent while mercury vapour passes through.
  • the mercury vapour is trapped by the mercury trap 1 12. Trapping time is about 3 to 5 minutes to ensure entrapment of all mercury vapour. Thereafter, the mercury trap 1 12 can be heated to about 700°C to release the trapped mercury to the detector 1 14.
  • FIG. 3 is a flow chart 300 illustrating a method for measuring mercury in a hydrocarbon stream, according to an embodiment of the invention.
  • the method 300 includes a step 302 of emitting microwaves from a wave generator, a step 304 of providing a receptacle that is configured to hold a catalyst, a step 306 of passing the hydrocarbon stream to the receptacle such that the hydrocarbon stream is in fluid communication with the receptacle that is holding the catalyst, and a step 308 of using a waveguide that is disposed between the wave generator and the receptacle to channel the emitted microwaves to the catalyst such that the catalyst absorbs the microwaves to generate heat for converting mercury in the hydrocarbon stream into elemental mercury.
  • the catalyst absorbs the microwaves to generate heat to also at least partially crack complex hydrocarbon molecules in the hydrocarbon stream into simpler hydrocarbon molecules.
  • the receptacle is configured to hold an additional catalyst that can adsorb the hydrocarbon molecules.
  • the additional catalyst can adsorb both complex and simple hydrocarbon molecules.
  • the catalyst and the additional catalyst do not capture elemental mercury.
  • the catalyst and the additional catalyst are physically separated in the receptacle.
  • the receptacle may be located within a housing that has walls that are configured to reflect a portion of the emitted microwaves such that standing waves are formed in the receptacle at a resonant frequency to facilitate the generation of heat by the catalyst held in the receptacle.
  • the catalyst includes a substance having a dissipation factor of at least 0.30.
  • the catalyst may include silicon carbide (SiC) and carbon (C), with a SiC:C ratio ranging from 1 :0 to 1 :1 .
  • the SiC may include a-SiC or ⁇ -SiC.
  • the additional catalyst includes a substance derived from a polymer-based material, e.g. 2, 6-diphenylene- oxide.
  • the method may further include the step of providing at least two mercury traps disposed downstream relative to the receptacle, in which at least one trap operates in an adsorption mode for adsorbing the elemental mercury while at least one other trap operates in a desorption mode for releasing the elemental mercury.
  • the method may further include the step of providing a detector in fluid communication with the trap that is operating in the desorption mode for detecting mercury being desorbed therefrom.
  • the method may further include the step of configuring at least two mercury traps to alternate between the adsorption mode and the desorption mode to enable measurement of mercury in the hydrocarbon stream.
  • the system 100 can be configured to operate in two different operating cycles: a start-up cycle and a sampling/analysis cycle.
  • a start-up cycle and a sampling/analysis cycle.
  • the start-up cycle comprises one sequence, Sequence 0, for conditioning the system.
  • a stream of carrier gas provides means to translocate the sample through the entirety of the system.
  • Sequence 0 can be conducted for >30 minutes during initial start-up prior to initiating the sampling/analysis cycle.
  • a steady flow of carrier gas e.g. N 2 ; >95% purity
  • the mercury traps of Sample Loop 1 (i.e. trap 408a) and Sample Loop 2 (i.e. trap 408b) are on standby.
  • the carrier gas passes through Sample Loop 1 towards mercury detector 410.
  • the microwave system 402 is 'off during Sequence 0.
  • the sampling/analysis cycle can be initiated.
  • the stream of carrier gas is always flowing during the sampling/analysis cycle.
  • the sample is first introduced to the system.
  • the stream of carrier gas is always flowing for catalyst conditioning.
  • a finite volume between 0.1 to 0.5 mL of a hydrocarbon sample is injected onto Catalyst 1 +2 module 502a while microwave system 502 is 'off.
  • the carrier gas (N 2 ) continuously flows into microwave system 502 through Catalyst 1 +2 module 502a, continues towards 8-port valve 504 (via sample loop 2) and proceeds to sample waste 506.
  • Sequence 1 any naturally flashed gas from the sample is transported to the gold coated silica trap 508b and Hg is trapped while the gas passes through to Sample Waste.
  • a part of the hydrocarbon sample may vaporize upon injection (e.g. due to temperature/pressure drop) and this vapor carries Hg.
  • the carrier gas passes through Sample Loop 1 towards mercury detector 510.
  • the elemental mercury flows towards 8-port valve 604 and is adsorbed (i.e. amalgamated) onto mercury trap 608b (Sample Loop 2) while the spent sample which is not trapped by Catalyst 1 +2 module 602a is discarded to sample waste 606. Simultaneously, the mercury trap 608a for Sample Loop 1 is on standby.
  • microwave system 702 is switched 'off and flow of N 2 may enter the microwave system to externally cool the system .
  • the 8-port valve 704 switches and the mercury trap 708b at Sample Loop 2 undergoes desorption to release mercury which is pushed by the carrier gas to a mercury trap (i.e.
  • the mercury trap 708b is heated to desorb the mercury and is pushed by the carrier gas to the mercury detector 710 for measurement. Simultaneously, mercury trap 708a for Sample Loop 1 is on standby to receive the next sample. The mercury trap of the mercury detector 710 adsorbs the mercury and channels the remaining mercury-free gas to waste. While the microwave system 702 is Off, a finite volume between 0.1 to 0.5 mL of hydrocarbon sample is injected onto Catalyst 1 +2 module 702a.
  • the elemental mercury flows towards 8-port valve 804 and is adsorbed (i.e. amalgamated) onto a mercury trap 808a (Sample Loop 1 ) while the spent sample which is not trapped by Catalyst 1 +2 module 802a is discarded to sample waste 806.
  • the mercury trap 808b at Sample Loop 2 is cooled using an external flow of N 2 . No carrier gas passes through this trap.
  • microwave system 902 is switched 'off and flow of N 2 may enter the microwave system to externally cool the system.
  • the 8-port valve 904 switches and the mercury trap 908a at Sample Loop 1 undergoes desorption to release mercury which is pushed by the carrier gas to the mercury trap (i.e. double amalgamation) located in the mercury detector 910.
  • the mercury trap 908a is heated to desorb the mercury and is pushed by the carrier gas to the mercury detector 910 for measurement.
  • the mercury trap 908b for Sample Loop 2 has completed its cooling phase and is on standby to receive the next sample.
  • the mercury trap of the mercury detector 910 adsorbs the mercury and channels the remaining mercury-free gas to waste. While microwave system 902 is Off, a finite volume between 0.1 to 0.5 mL of hydrocarbon sample is injected onto Catalyst 1 +2 module 902a.
  • the elemental mercury flows towards 8-port valve 1004 and is adsorbed (i.e. amalgamated) onto a mercury trap 1008b (Sample Loop 2) while the spent sample which is not trapped by Catalyst 1 +2 module 1002a is discarded to sample waste 1006.
  • the mercury trap 1008a at Sample Loop 1 is cooled using an external flow of N 2 . No carrier gas passes through this trap.
  • Embodiments of the invention utilize microwave heating to achieve pyrolysis as opposed to conventional heating. Compared to the conventional pyrolizing systems, embodiments of the invention have the following technical advantages.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

L'invention concerne un système et un procédé de dosage du mercure dans un flux d'hydrocarbures. Le système comprend : un générateur d'ondes configuré pour émettre des micro-ondes ; un réceptacle configuré pour contenir un catalyseur ; un transporteur de fluide configuré pour permettre au flux d'hydrocarbures d'être en communication fluidique avec le réceptacle qui contient le catalyseur ; et un guide d'ondes disposé entre le générateur d'ondes et le réceptacle, le guide d'ondes étant configuré pour canaliser les micro-ondes émises vers le catalyseur de telle sorte que le catalyseur absorbe les micro-ondes, pour générer de la chaleur afin de convertir le mercure présent dans le flux d'hydrocarbures en mercure élémentaire. Le catalyseur peut également faciliter la vaporisation et le craquage de chaînes hydrocarbonées complexes dans le flux d'hydrocarbures en chaînes hydrocarbonées plus simples. Un catalyseur supplémentaire peut être prévu pour piéger ou adsorber les chaînes hydrocarbonées plus simples et leur produit pyrolysé à partir du flux d'hydrocarbures.
PCT/MY2018/050041 2017-06-15 2018-06-13 Système et procédé de dosage du mercure dans un flux d'hydrocarbures Ceased WO2018231047A1 (fr)

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Application Number Priority Date Filing Date Title
MYPI2017000904A MY198938A (en) 2017-06-15 2017-06-15 System and method for measuring mercury in a hydrocarbon stream
MYPI2017000904 2017-06-15

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WO2018231047A1 true WO2018231047A1 (fr) 2018-12-20

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62278236A (ja) * 1985-05-02 1987-12-03 Ebara Res Co Ltd 水銀を含む廃棄物から水銀を回収する方法及びその装置
WO2012123378A1 (fr) * 2011-03-11 2012-09-20 Puregeneration (Uk) Ltd Procédé de production et d'utilisation de cyanoguanidine et de cyanamide
WO2014153570A2 (fr) * 2013-03-15 2014-09-25 Transtar Group, Ltd Système nouveau et amélioré pour le traitement de divers produits chimiques et matériaux

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62278236A (ja) * 1985-05-02 1987-12-03 Ebara Res Co Ltd 水銀を含む廃棄物から水銀を回収する方法及びその装置
WO2012123378A1 (fr) * 2011-03-11 2012-09-20 Puregeneration (Uk) Ltd Procédé de production et d'utilisation de cyanoguanidine et de cyanamide
WO2014153570A2 (fr) * 2013-03-15 2014-09-25 Transtar Group, Ltd Système nouveau et amélioré pour le traitement de divers produits chimiques et matériaux

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